| 19809739 |
Arunachalampillai A, Olsson D, Wendt OF: Synthesis and characterisation of PCsp3P phosphine and phosphinite iridium complexes. Dalton Trans. 2009 Oct 28;(40):8626-30. Epub 2009 Aug 20.
Cyclometallation and dehydrogenation of a cyclohexyl ring.. A cyclohexyl based pincer phosphine ligand undergoes cyclometalation with an iridium cyclooctadiene precursor to give a highly thermally stable iridium (III) complex where a C (sp3)-H bond has been oxidatively added. This iridium (III) hydride complex is reduced with potassium to give a terminal iridium (I) dinitrogen complex with no tendency to dimerization. The corresponding cyclohexyl phosphinite ligand undergoes reversible dehydrogenation to give the aromatic cyclometalated iridium (III) hydride complex together with 3 equivalents of dihydrogen. |
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